Removing water from P trap/drain

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by moobiker, Aug 14, 2006.

  1. moobiker

    moobiker New Member

    Joined:
    Aug 13, 2006
    Location:
    Boise, ID
    Hi,

    I'm remodeling an upstairs bathroom, have demo'd the old (concrete) tub/shower and am preparing to install a jetted tub and freestanding shower, either Kerdi, Wedi or maybe Tile-Redi pan. I have to move and extend the existing shower bath drain, and I’m concerned about causing a flood to the 1st floor when I cut the connection to the P trap, with the water that is now standing in the drain. Can anyone tell me how much water I can expect to drain out, and does anyone have any tricks/tips for removing the standing water?

    Mike
     
  2. prashster

    prashster New Member

    Joined:
    Dec 7, 2005
    It's not that much. A few cupfuls (assuming it's a 2" pipe").

    Try a turkey baster.

    Or stuff a coiled hand towel down the drain.
     
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  4. jdkimes

    jdkimes Engineer

    Joined:
    Sep 2, 2004
    Occupation:
    Engineer
    Location:
    Littleton, CO
    Tape a pipe or tube to a wet vac and suck it out...with the vacuum.
     
  5. moobiker

    moobiker New Member

    Joined:
    Aug 13, 2006
    Location:
    Boise, ID
    All good ideas, thanks - and sorry again for being a noob and accidentally double posting
     
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    The trap is normally a U about 4-6" across at the top, so you can figure the volume.
     
  7. Lakee911

    Lakee911 I&C Engineer (mostly WWTP)

    Joined:
    Aug 23, 2005
    Occupation:
    I&C Engineer (mostly WWTP)
    Location:
    Columbus, OH
    Thanks for the clarification ... I was wondering what the wetvac was for if I was gonna suck on it ;)

    Jason
     
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